Sorry about the bold type, as I'm pasting this info. Sky.
Has anyone seen this? And can you cover the DVI module to
"prevent" this from happening?
JVC AV48WP30 Important Servicing Note
If You Remove The Rear Cover While The Power Is On You Will Destroy All Dvi Programming Inside The Dvi Digital Input Module. The Only Way To Restore The Programming Is To Send The Unit To Jvc. There Is A Light Sensor Inside The TV And When The Back Is Removed With The Power On The Data Is Erased From The EPROM. First Turn Off Set And Remove Power Cord Then Short Pins 1 And 2 On The Sb Connector Of Digital Input Module. Module has to be sent to Japan by JVC, & the repairshop pays for it.